/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __ACPI_ACPIGEN_H__ #define __ACPI_ACPIGEN_H__ #include #include #include #include #include #include /* Values that can be returned for ACPI Device _STA method */ #define ACPI_STATUS_DEVICE_PRESENT (1 << 0) #define ACPI_STATUS_DEVICE_ENABLED (1 << 1) #define ACPI_STATUS_DEVICE_SHOW_IN_UI (1 << 2) #define ACPI_STATUS_DEVICE_STATE_OK (1 << 3) #define ACPI_STATUS_DEVICE_ALL_OFF 0 #define ACPI_STATUS_DEVICE_ALL_ON (ACPI_STATUS_DEVICE_PRESENT |\ ACPI_STATUS_DEVICE_ENABLED |\ ACPI_STATUS_DEVICE_SHOW_IN_UI |\ ACPI_STATUS_DEVICE_STATE_OK) #define ACPI_STATUS_DEVICE_HIDDEN_ON (ACPI_STATUS_DEVICE_PRESENT |\ ACPI_STATUS_DEVICE_ENABLED |\ ACPI_STATUS_DEVICE_STATE_OK) /* ACPI Op/Prefix Codes */ enum { ZERO_OP = 0x00, ONE_OP = 0x01, ALIAS_OP = 0x06, NAME_OP = 0x08, BYTE_PREFIX = 0x0A, WORD_PREFIX = 0x0B, DWORD_PREFIX = 0x0C, STRING_PREFIX = 0x0D, QWORD_PREFIX = 0x0E, SCOPE_OP = 0x10, BUFFER_OP = 0x11, PACKAGE_OP = 0x12, VARIABLE_PACKAGE_OP = 0x13, METHOD_OP = 0x14, EXTERNAL_OP = 0x15, DUAL_NAME_PREFIX = 0x2E, MULTI_NAME_PREFIX = 0x2F, EXT_OP_PREFIX = 0x5B, MUTEX_OP = 0x01, EVENT_OP = 0x01, SF_RIGHT_OP = 0x10, SF_LEFT_OP = 0x11, COND_REFOF_OP = 0x12, CREATEFIELD_OP = 0x13, LOAD_TABLE_OP = 0x1f, LOAD_OP = 0x20, STALL_OP = 0x21, SLEEP_OP = 0x22, ACQUIRE_OP = 0x23, SIGNAL_OP = 0x24, WAIT_OP = 0x25, RST_OP = 0x26, RELEASE_OP = 0x27, FROM_BCD_OP = 0x28, TO_BCD_OP = 0x29, UNLOAD_OP = 0x2A, REVISON_OP = 0x30, DEBUG_OP = 0x31, FATAL_OP = 0x32, TIMER_OP = 0x33, OPREGION_OP = 0x80, FIELD_OP = 0x81, DEVICE_OP = 0x82, PROCESSOR_OP = 0x83, POWER_RES_OP = 0x84, THERMAL_ZONE_OP = 0x85, INDEX_FIELD_OP = 0x86, BANK_FIELD_OP = 0x87, DATA_REGION_OP = 0x88, ROOT_PREFIX = 0x5C, PARENT_PREFIX = 0x5E, LOCAL0_OP = 0x60, LOCAL1_OP = 0x61, LOCAL2_OP = 0x62, LOCAL3_OP = 0x63, LOCAL4_OP = 0x64, LOCAL5_OP = 0x65, LOCAL6_OP = 0x66, LOCAL7_OP = 0x67, ARG0_OP = 0x68, ARG1_OP = 0x69, ARG2_OP = 0x6A, ARG3_OP = 0x6B, ARG4_OP = 0x6C, ARG5_OP = 0x6D, ARG6_OP = 0x6E, STORE_OP = 0x70, REF_OF_OP = 0x71, ADD_OP = 0x72, CONCATENATE_OP = 0x73, SUBTRACT_OP = 0x74, INCREMENT_OP = 0x75, DECREMENT_OP = 0x76, MULTIPLY_OP = 0x77, DIVIDE_OP = 0x78, SHIFT_LEFT_OP = 0x79, SHIFT_RIGHT_OP = 0x7A, AND_OP = 0x7B, NAND_OP = 0x7C, OR_OP = 0x7D, NOR_OP = 0x7E, XOR_OP = 0x7F, NOT_OP = 0x80, FD_SHIFT_LEFT_BIT_OR = 0x81, FD_SHIFT_RIGHT_BIT_OR = 0x82, DEREF_OP = 0x83, CONCATENATE_TEMP_OP = 0x84, MOD_OP = 0x85, NOTIFY_OP = 0x86, SIZEOF_OP = 0x87, INDEX_OP = 0x88, MATCH_OP = 0x89, CREATE_DWORD_OP = 0x8A, CREATE_WORD_OP = 0x8B, CREATE_BYTE_OP = 0x8C, CREATE_BIT_OP = 0x8D, OBJ_TYPE_OP = 0x8E, CREATE_QWORD_OP = 0x8F, LAND_OP = 0x90, LOR_OP = 0x91, LNOT_OP = 0x92, LEQUAL_OP = 0x93, LGREATER_OP = 0x94, LLESS_OP = 0x95, TO_BUFFER_OP = 0x96, TO_DEC_STRING_OP = 0x97, TO_HEX_STRING_OP = 0x98, TO_INTEGER_OP = 0x99, TO_STRING_OP = 0x9C, CP_OBJ_OP = 0x9D, MID_OP = 0x9E, CONTINUE_OP = 0x9F, IF_OP = 0xA0, ELSE_OP = 0xA1, WHILE_OP = 0xA2, NOOP_OP = 0xA3, RETURN_OP = 0xA4, BREAK_OP = 0xA5, COMMENT_OP = 0xA9, BREAKPIONT_OP = 0xCC, ONES_OP = 0xFF, }; #define FIELDLIST_OFFSET(X) { .type = OFFSET, \ .name = "",\ .bits = X * 8, \ } #define FIELDLIST_NAMESTR(X, Y) { .type = NAME_STRING, \ .name = X, \ .bits = Y, \ } #define FIELDLIST_RESERVED(X) { .type = RESERVED, \ .name = "", \ .bits = X, \ } #define FIELD_ANYACC 0 #define FIELD_BYTEACC 1 #define FIELD_WORDACC 2 #define FIELD_DWORDACC 3 #define FIELD_QWORDACC 4 #define FIELD_BUFFERACC 5 #define FIELD_NOLOCK (0<<4) #define FIELD_LOCK (1<<4) #define FIELD_PRESERVE (0<<5) #define FIELD_WRITEASONES (1<<5) #define FIELD_WRITEASZEROS (2<<5) enum field_type { OFFSET, NAME_STRING, RESERVED, FIELD_TYPE_MAX, }; struct fieldlist { enum field_type type; const char *name; u32 bits; }; #define OPREGION(rname, space, offset, len) {.name = rname, \ .regionspace = space, \ .regionoffset = offset, \ .regionlen = len, \ } enum region_space { SYSTEMMEMORY, SYSTEMIO, PCI_CONFIG, EMBEDDEDCONTROL, SMBUS, CMOS, PCIBARTARGET, IPMI, GPIO_REGION, GPSERIALBUS, PCC, FIXED_HARDWARE = 0x7F, REGION_SPACE_MAX, }; enum acpi_resource_type { RSRC_TYPE_MEM = 0, RSRC_TYPE_IO = 1, RSRC_TYPE_BUS = 2 }; enum acpi_decode_type { DECODE_10, DECODE_16 }; enum acpi_read_write_type { READ_ONLY, READ_WRITE }; enum acpi_cacheable_type { NON_CACHEABLE, CACHEABLE }; enum acpi_resource_subtype { DWORD_IO, DWORD_MEMORY, IO, MEMORY_32_FIXED, QWORD_MEMORY, WORD_BUS_NUMBER }; /* macros for ACPI Table 6.49 Memory Resource Flag (Resource Type = 0) */ #define MEM_RSRC_FLAG_TRNSL_TYPE_STATIC 0x0 #define MEM_RSRC_FLAG_TRNSL_TYPE_TRANSLATION (0x1 << 5) #define MEM_RSRC_FLAG_ADDR_RNG_MEM 0x0 #define MEM_RSRC_FLAG_ADDR_RNG_RSV (0x1 << 3) #define MEM_RSRC_FLAG_ADDR_RNG_ACPI (0x2 << 3) #define MEM_RSRC_FLAG_ADDR_RNG_NVA (0x3 << 3) #define MEM_RSRC_FLAG_MEM_ATTR_NON_CACHE 0x0 #define MEM_RSRC_FLAG_MEM_ATTR_CACHE (0x1 << 1) #define MEM_RSRC_FLAG_MEM_ATTR_CACHE_WRT (0x2 << 1) #define MEM_RSRC_FLAG_MEM_ATTR_CACHE_PREFETCH (0x3 << 1) #define MEM_RSRC_FLAG_MEM_READ_ONLY 0x0 #define MEM_RSRC_FLAG_MEM_READ_WRITE 0x1 /* macros for ACPI Table 6.50 I/O Resource Flag (Resource Type = 1) */ #define IO_RSRC_FLAG_ENTIRE_RANGE 0x3 #define IO_RSRC_FLAG_ISA_ONLY 0x2 #define IO_RSRC_FLAG_NON_ISA_ONLY 0x1 #define IO_RSRC_FLAG_TRASL_TYPE_STATIC 0x0 #define IO_RSRC_FLAG_TRNSL_TYPE_TRANSLATION (0x1 << 4) #define IO_RSRC_FLAG_SPRS_TRASL_DENSE 0x0 #define IO_RSRC_FLAG_SPRS_TRNSL_SPARSE (0x1 << 5) /* macro for ACPI Table 6.51 Bus Number Range Resource Flag (Resource Type = 2) */ #define BUS_NUM_RANGE_RESOURCE_FLAG 0x0 // reserved /* General Flags for WORD Address Space Descriptor Definition (ACPI Table 6.47, byte 4)*/ #define ADDR_SPACE_GENERAL_FLAG_MAX_FIXED (0x1 << 3) #define ADDR_SPACE_GENERAL_FLAG_MAX_NOT_FIXED 0x0 #define ADDR_SPACE_GENERAL_FLAG_MIN_FIXED (0x1 << 2) #define ADDR_SPACE_GENERAL_FLAG_MIN_NOT_FIXED 0x0 #define ADDR_SPACE_GENERAL_FLAG_DEC_SUB (0x1 << 1) #define ADDR_SPACE_GENERAL_FLAG_DEC_POS 0x0 #define ADDR_SPACE_GENERAL_FLAG_CONSUMER 0x10 #define ADDR_SPACE_GENERAL_FLAG_PRODUCER 0x0 struct opregion { const char *name; enum region_space regionspace; unsigned long regionoffset; unsigned long regionlen; }; #define DSM_UUID(DSM_UUID, DSM_CALLBACKS, DSM_COUNT, DSM_ARG) \ { .uuid = DSM_UUID, \ .callbacks = DSM_CALLBACKS, \ .count = DSM_COUNT, \ .arg = DSM_ARG, \ } struct dsm_uuid { const char *uuid; void (**callbacks)(void *); size_t count; void *arg; }; #define CPPC_VERSION_1 1 #define CPPC_VERSION_2 2 #define CPPC_VERSION_3 3 #define CPPC_PACKAGE_NAME "GCPC" /*version 1 has 15 fields, version 2 has 19, and version 3 has 21 */ enum cppc_fields { CPPC_HIGHEST_PERF, /* can be DWORD */ CPPC_NOMINAL_PERF, /* can be DWORD */ CPPC_LOWEST_NONL_PERF, /* can be DWORD */ CPPC_LOWEST_PERF, /* can be DWORD */ CPPC_GUARANTEED_PERF, CPPC_DESIRED_PERF, CPPC_MIN_PERF, CPPC_MAX_PERF, CPPC_PERF_REDUCE_TOLERANCE, CPPC_TIME_WINDOW, CPPC_COUNTER_WRAP, /* can be DWORD */ CPPC_REF_PERF_COUNTER, CPPC_DELIVERED_PERF_COUNTER, CPPC_PERF_LIMITED, CPPC_ENABLE, /* can be System I/O */ CPPC_MAX_FIELDS_VER_1, CPPC_AUTO_SELECT = /* can be DWORD */ CPPC_MAX_FIELDS_VER_1, CPPC_AUTO_ACTIVITY_WINDOW, CPPC_PERF_PREF, CPPC_REF_PERF, /* can be DWORD */ CPPC_MAX_FIELDS_VER_2, CPPC_LOWEST_FREQ = /* can be DWORD */ CPPC_MAX_FIELDS_VER_2, CPPC_NOMINAL_FREQ, /* can be DWORD */ CPPC_MAX_FIELDS_VER_3, }; typedef struct cppc_entry { enum { CPPC_TYPE_REG, CPPC_TYPE_DWORD } type; union { acpi_addr_t reg; uint32_t dword; }; } cppc_entry_t; #define CPPC_DWORD(_dword) \ (cppc_entry_t){ \ .type = CPPC_TYPE_DWORD, \ .dword = _dword, \ } #define CPPC_REG(_reg) \ (cppc_entry_t){ \ .type = CPPC_TYPE_REG, \ .reg = _reg, \ } #define CPPC_REG_MSR(address, offset, width) CPPC_REG(ACPI_REG_MSR(address, offset, width)) #define CPPC_UNSUPPORTED CPPC_REG(ACPI_REG_UNSUPPORTED) struct cppc_config { u32 version; /* must be 1, 2, or 3 */ /* * The generic acpi_addr_t structure is being used, though * anything besides PPC or FFIXED generally requires checking * if the OS has advertised support for it (via _OSC). */ cppc_entry_t entries[CPPC_MAX_FIELDS_VER_3]; }; #define ACPI_MUTEX_NO_TIMEOUT 0xffff void acpigen_write_return_integer(uint64_t arg); void acpigen_write_return_namestr(const char *arg); void acpigen_write_return_string(const char *arg); void acpigen_write_len_f(void); void acpigen_pop_len(void); void acpigen_set_current(char *curr); char *acpigen_get_current(void); char *acpigen_write_package(int nr_el); __always_inline void acpigen_write_package_end(void) { acpigen_pop_len(); } void acpigen_write_zero(void); void acpigen_write_one(void); void acpigen_write_ones(void); void acpigen_write_byte(unsigned int data); void acpigen_emit_byte(unsigned char data); void acpigen_emit_ext_op(uint8_t op); void acpigen_emit_word(unsigned int data); void acpigen_emit_dword(unsigned int data); void acpigen_emit_stream(const char *data, int size); void acpigen_emit_string(const char *string); void acpigen_emit_namestring(const char *namepath); void acpigen_emit_eisaid(const char *eisaid); void acpigen_write_word(unsigned int data); void acpigen_write_dword(unsigned int data); void acpigen_write_qword(uint64_t data); void acpigen_write_integer(uint64_t data); void acpigen_write_string(const char *string); void acpigen_write_name_unicode(const char *name, const char *string); void acpigen_write_name(const char *name); void acpigen_write_name_string(const char *name, const char *string); void acpigen_write_name_dword(const char *name, uint32_t val); void acpigen_write_name_qword(const char *name, uint64_t val); void acpigen_write_name_byte(const char *name, uint8_t val); void acpigen_write_name_integer(const char *name, uint64_t val); void acpigen_write_coreboot_hid(enum coreboot_acpi_ids id); void acpigen_write_scope(const char *name); __always_inline void acpigen_write_scope_end(void) { acpigen_pop_len(); } void acpigen_write_method(const char *name, int nargs); void acpigen_write_method_serialized(const char *name, int nargs); __always_inline void acpigen_write_method_end(void) { acpigen_pop_len(); } void acpigen_write_device(const char *name); __always_inline void acpigen_write_device_end(void) { acpigen_pop_len(); } void acpigen_write_thermal_zone(const char *name); __always_inline void acpigen_write_thermal_zone_end(void) { acpigen_pop_len(); } void acpigen_write_LPI_package(u64 level, const struct acpi_lpi_state *states, u16 nentries); void acpigen_write_PPC(u8 nr); void acpigen_write_PPC_NVS(void); void acpigen_write_empty_PCT(void); void acpigen_write_empty_PTC(void); void acpigen_write_PRW(u32 wake, u32 level); void acpigen_write_STA(uint8_t status); void acpigen_write_STA_ext(const char *namestring); void acpigen_write_TPC(const char *gnvs_tpc_limit); void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat, u32 control, u32 status); void acpigen_write_pss_object(const struct acpi_sw_pstate *pstate_values, size_t nentries); typedef enum { SW_ALL = 0xfc, SW_ANY = 0xfd, HW_ALL = 0xfe } PSD_coord; void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype); void acpigen_write_CST_package_entry(const acpi_cstate_t *cstate); void acpigen_write_CST_package(const acpi_cstate_t *entry, int nentries); typedef enum { CSD_HW_ALL = 0xfe } CSD_coord; void acpigen_write_CSD_package(u32 domain, u32 numprocs, CSD_coord coordtype, u32 index); void acpigen_write_pct_package(const acpi_addr_t *perf_ctrl, const acpi_addr_t *perf_sts); void acpigen_write_xpss_package(const struct acpi_xpss_sw_pstate *pstate_value); void acpigen_write_xpss_object(const struct acpi_xpss_sw_pstate *pstate_values, size_t nentries); void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len); __always_inline void acpigen_write_processor_end(void) { acpigen_pop_len(); } void acpigen_write_processor_package(const char *name, unsigned int first_core, unsigned int core_count); void acpigen_write_processor_cnot(const unsigned int number_of_cores); void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list); void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype); void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size); void acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16); void acpigen_write_register_resource(const acpi_addr_t *addr); void acpigen_write_resourcetemplate_header(void); void acpigen_write_resourcetemplate_footer(void); void acpigen_write_mainboard_resource_template(void); void acpigen_write_mainboard_resources(const char *scope, const char *name); void acpigen_write_irq(u16 mask); void acpigen_write_uuid(const char *uuid); void acpigen_write_power_res(const char *name, uint8_t level, uint16_t order, const char * const dev_states[], size_t dev_states_count); __always_inline void acpigen_write_power_res_end(void) { acpigen_pop_len(); } void acpigen_write_sleep(uint64_t sleep_ms); void acpigen_write_store(void); void acpigen_write_store_int_to_namestr(uint64_t src, const char *dst); void acpigen_write_store_int_to_op(uint64_t src, uint8_t dst); void acpigen_write_store_ops(uint8_t src, uint8_t dst); void acpigen_write_store_op_to_namestr(uint8_t src, const char *dst); void acpigen_write_or(uint8_t arg1, uint8_t arg2, uint8_t res); void acpigen_write_xor(uint8_t arg1, uint8_t arg2, uint8_t res); void acpigen_write_and(uint8_t arg1, uint8_t arg2, uint8_t res); void acpigen_write_not(uint8_t arg, uint8_t res); void acpigen_write_debug_string(const char *str); void acpigen_write_debug_namestr(const char *str); void acpigen_write_debug_integer(uint64_t val); void acpigen_write_debug_op(uint8_t op); void acpigen_write_if(void); void acpigen_write_if_and(uint8_t arg1, uint8_t arg2); void acpigen_write_if_lequal_op_op(uint8_t op, uint8_t val); void acpigen_write_if_lequal_op_int(uint8_t op, uint64_t val); void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val); __always_inline void acpigen_write_if_end(void) { acpigen_pop_len(); } /* Emits If (CondRefOf(NAME)) */ void acpigen_write_if_cond_ref_of(const char *namestring); void acpigen_write_else(void); void acpigen_write_shiftleft_op_int(uint8_t src_result, uint64_t count); void acpigen_write_to_buffer(uint8_t src, uint8_t dst); void acpigen_write_to_integer(uint8_t src, uint8_t dst); void acpigen_write_to_integer_from_namestring(const char *source, uint8_t dst_op); void acpigen_write_byte_buffer(uint8_t *arr, size_t size); void acpigen_write_return_byte_buffer(uint8_t *arr, size_t size); void acpigen_write_return_singleton_buffer(uint8_t arg); void acpigen_write_return_op(uint8_t arg); void acpigen_write_return_byte(uint8_t arg); void acpigen_write_upc(enum acpi_upc_type type); void acpigen_write_pld(const struct acpi_pld *pld); void acpigen_write_ADR(uint64_t adr); struct soundwire_address; void acpigen_write_ADR_soundwire_device(const struct soundwire_address *address); void acpigen_write_create_byte_field(uint8_t op, size_t byte_offset, const char *name); void acpigen_write_create_word_field(uint8_t op, size_t byte_offset, const char *name); void acpigen_write_create_dword_field(uint8_t op, size_t byte_offset, const char *name); void acpigen_write_create_qword_field(uint8_t op, size_t byte_offset, const char *name); /* * Generate ACPI AML code for _DSM method. * This function takes as input uuid for the device, set of callbacks and * argument to pass into the callbacks. Callbacks should ensure that Local0 and * Local1 are left untouched. Use of Local2-Local7 is permitted in callbacks. * If the first callback is NULL, then a default implementation of Function 0 * will be autogenerated, returning a package of bits corresponding to the * function callbacks that are non-NULL. */ void acpigen_write_dsm(const char *uuid, void (**callbacks)(void *), size_t count, void *arg); void acpigen_write_dsm_uuid_arr(struct dsm_uuid *ids, size_t count); /* * Generate ACPI AML code for _CPC (Continuous Performance Control). * Execute the package function once to create a global table, then * execute the method function within each processor object to * create a method that points to the global table. */ void acpigen_write_CPPC_package(const struct cppc_config *config); void acpigen_write_CPPC_method(void); /* * Generate ACPI AML code for _ROM method. * This function takes as input ROM data and ROM length. * The ROM length has to be multiple of 4096 and has to be less * than the current implementation limit of 0x40000. */ void acpigen_write_rom(void *bios, const size_t length); /* * Generate ACPI AML code for OperationRegion * This function takes input region name, region space, region offset & region * length. */ void acpigen_write_opregion(const struct opregion *opreg); /* * Generate ACPI AML code for Mutex * This function takes mutex name and initial value. */ void acpigen_write_mutex(const char *name, const uint8_t flags); /* * Generate ACPI AML code for Acquire * This function takes mutex name and privilege value. */ void acpigen_write_acquire(const char *name, const uint16_t val); /* * Generate ACPI AML code for Release * This function takes mutex name. */ void acpigen_write_release(const char *name); /* * Generate ACPI AML code for Field * This function takes input region name, fieldlist, count & flags. */ void acpigen_write_field(const char *name, const struct fieldlist *l, size_t count, uint8_t flags); /* * Generate ACPI AML code for IndexField * This function takes input index name, data name, fieldlist, count & flags. */ void acpigen_write_indexfield(const char *idx, const char *data, struct fieldlist *l, size_t count, uint8_t flags); int get_cst_entries(const acpi_cstate_t **); /* * Get element from package into specified destination op: * = DeRefOf ([]) * * Example: * acpigen_get_package_op_element(ARG0_OP, 0, LOCAL0_OP) * Local0 = DeRefOf (Arg0[0]) */ void acpigen_get_package_op_element(uint8_t package_op, unsigned int element, uint8_t dest_op); /* Set element of package op to specified op: DeRefOf ([]) = */ void acpigen_set_package_op_element_int(uint8_t package_op, unsigned int element, uint64_t src); /* Get element from package to specified op: = [] */ void acpigen_get_package_element(const char *package, unsigned int element, uint8_t dest_op); /* Set element of package to specified op: [] = */ void acpigen_set_package_element_int(const char *package, unsigned int element, uint64_t src); /* Set element of package to specified namestr: [] = */ void acpigen_set_package_element_namestr(const char *package, unsigned int element, const char *src); /* * Delay up to wait_ms milliseconds until the provided name matches the expected value. * If wait_ms is >= 32ms then it will wait in 16ms chunks. This function uses LOCAL7_OP. */ void acpigen_write_delay_until_namestr_int(uint32_t wait_ms, const char *name, uint64_t value); /* * Soc-implemented functions for generating ACPI AML code for GPIO handling. All * these functions are expected to use only Local5, Local6 and Local7 * variables. If the functions call into another ACPI method, then there is no * restriction on the use of Local variables. In case of get/read functions, * return value is expected to be stored in Local0 variable. * * All functions return 0 on success and -1 on error. */ /* Generate ACPI AML code to return Rx value of GPIO in Local0. */ int acpigen_soc_read_rx_gpio(unsigned int gpio_num); /* Generate ACPI AML code to return Tx value of GPIO in Local0. */ int acpigen_soc_get_tx_gpio(unsigned int gpio_num); /* Generate ACPI AML code to set Tx value of GPIO to 1. */ int acpigen_soc_set_tx_gpio(unsigned int gpio_num); /* Generate ACPI AML code to set Tx value of GPIO to 0. */ int acpigen_soc_clear_tx_gpio(unsigned int gpio_num); /* * Helper functions for enabling/disabling Tx GPIOs based on the GPIO * polarity. These functions end up calling acpigen_soc_{set,clear}_tx_gpio to * make callbacks into SoC acpigen code. * * Returns 0 on success and -1 on error. */ int acpigen_enable_tx_gpio(const struct acpi_gpio *gpio); int acpigen_disable_tx_gpio(const struct acpi_gpio *gpio); /* * Helper function for getting a RX GPIO value based on the GPIO polarity. * The return value is stored in Local0 variable. * This function ends up calling acpigen_soc_get_rx_gpio to make callbacks * into SoC acpigen code */ void acpigen_get_rx_gpio(const struct acpi_gpio *gpio); /* * Helper function for getting a TX GPIO value based on the GPIO polarity. * The return value is stored in Local0 variable. * This function ends up calling acpigen_soc_get_tx_gpio to make callbacks * into SoC acpigen code */ void acpigen_get_tx_gpio(const struct acpi_gpio *gpio); /* refer to ACPI 6.4.3.5.3 Word Address Space Descriptor section for details */ void acpigen_resource_word(u16 res_type, u16 gen_flags, u16 type_flags, u16 gran, u16 range_min, u16 range_max, u16 translation, u16 length); /* refer to ACPI 6.4.3.5.2 DWord Address Space Descriptor section for details */ void acpigen_resource_dword(u16 res_type, u16 gen_flags, u16 type_flags, u32 gran, u32 range_min, u32 range_max, u32 translation, u32 length); /* refer to ACPI 6.4.3.5.1 QWord Address Space Descriptor section for details */ void acpigen_resource_qword(u16 res_type, u16 gen_flags, u16 type_flags, u64 gran, u64 range_min, u64 range_max, u64 translation, u64 length); /* Emits Notify(namestr, value) */ void acpigen_notify(const char *namestr, int value); #endif /* __ACPI_ACPIGEN_H__ */